我尝试从http：// developer.android.com / guide / google / gcm / gs.html 实现GCM。
我可以将注册ID发送到Servlet，但无法从中获取消息。
Servlet：
if("send".equals(id))
{
deviceHolder.put(did, reGid);
reGid = deviceHolder.get(did);
if(reGid== null || "".equals(reGid)){
System.out.println("device is not registered "+did);
}else{
Sender sender = new Sender(myApiKey);
Message message = new Message.Builder()
.collapseKey("1")
.timeToLive(3)
.delayWhileIdle(true)
.addData("message", "message is created at builder")
.build();
Result result = sender.send(message, reGid, 5);
System.out.println("result of message is "+ result);
}
}
GCMINtentService:
@Override
protected void onMessage(Context arg0, Intent arg1) {
Log.i(TAG, "new message= ");
Toast.makeText(getApplicationContext(), arg1.getStringExtra("message"),
Toast.LENGTH_SHORT).show();
}
在控制台:
A?u 07, 2012 4:37:08 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [servCloud] in context with path [/servletCloud] threw exception [Servlet execution threw an exception] with root cause
java.lang.ClassNotFoundException: com.google.android.gcm.server.Sender
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
at servCloud.doGet(servCloud.java:75)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
A?u 07, 2012 4:40:37 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/servletCloud] has started
A?u 07, 2012 4:40:38 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/servletCloud] is completed
我该如何解决这个问题？